I heard, that there is a own software development environment on st.com site! I need to use this program, STM32cubemx, RTOS and some files from st.com site to create the project with tcp server (Etherner) example.

Could anybody tell me what must I do step by step to create such example!

Regarding the way to start in order to develop your application, you have various choices: You'll probably want to review Ethernet examples as you can find under STM32CubeF4:

STM32Cube_FW_F4_V1.15.0\Projects\STM32469I_EVAL\Applications\LwIP

You can also start your own application using STM32CubeMx tool to initialize peripherals you need with the configuration you want and you may re-use sections available in the examples or get inspired from them.

You can refer to the reference manual RM0090 it provides complete information on how to use the STM32F4xx microcontroller memory and peripherals.Have a look to these documents:- UM1709 STM32Cube Ethernet IAP example, it maybe helpful as it provides a full description of how to implement In-Application Programming (IAP) using Ethernet communication.- AN3966 "LwIP TCP/IP stack demonstration for STM32F4x7 microcontrollers” .- UM1713 is a user manual about “Developing applications on STM32Cube with LwIP TCP/IP stack”.